A bunch of extra Rampant Growths and artifact tokens on top of a creature that improves your taplands all adds up to a powerful package
Ajani, Inspiring Leader Apostle of Invasion Aragorn, Hornburg Hero Arcade Cabinet Ascendant Acolyte Assault on Osgiliath Big Mother Mouser Biogenic Upgrade Bright-Palm, Soul Awakener Bristly Bill, Spine Sower Byrke, Long Ear of the Law Captain Marvel, Apex Avenger Chocobo Knights Court of Garenbrig Death Kiss Dragonsguard Elite Drizzt Do'Urden Elvish Vatkeeper Evolution Vat Fangs of Kalonia Ferrafor, Young Yew Fractal Harness Gavel of the Righteous Gilder Bairn Grand Master of Flowers Growth Curve Grunn, the Lonely King Hound of Griselbrand Hulk, Strongest There Is Hydra's Growth Invigorating Surge Kalonian Hydra Kinetic Ooze Knighted Myr Level Up Lightning Runner Lily Bowen, Raging Grandma Mossborn Hydra Nick Fury, Agent of S.H.I.E.L.D
The trick lies in the gift mechanic, which gives an opponent an extra turn in exchange for phasing out your permanents and providing you with protection from everything until your next turn
Immanuel Gerschenson (Twitter) Immanuel Gerschenson Immanuel is skillful at Constructed formats and took trophies at GP Madrid 2014 (Modern) and GP Seville 2015 (Standard)
[13] Turns alternate between players until someone meets one of the win conditions
It also gives the equipped creature +1/+0 to boot, which is a nice little bonus to make up for the lack of protection from the low ward cost